Help with hub Procurve Hp j3294a

There's a reset button on back. When pressed in a specific pattern the switch is returned to the factory default configuration. Chapter 8 discussed this in the following manual:
ftp://ftp.hp.com/pub/networking/software/59672145.pdf

HP ProCurve Switch 2600 Series Installation and Getting Started Guide

Page 1-9

ftp://ftp.hp.com/pub/networking/software/59908821-0904.pdf

Clear Button

This button is used for these purposes:

Deleting Passwords - When pressed by itself for at least one second, the button deletes any switch console access passwords that you may have configured. Use this feature if you have misplaced the password and need console access.

that switch has a life time warranty. contact http://www.hp.com that switch sounds like it has a bad flash memory in it

This link should tell you the answer. http://h30499.www3.hp.com/t5/Switches-Hubs-Modems-Legacy-ITRC/Clear-password-in-Procurve-2650/td-p/4598369#.U0sRNfldUok

The link below should provide you with an answer. 2610 and 2650 switches are very similar
http://h30499.www3.hp.com/t5/Switches-Hubs-Modems-Legacy-ITRC/Clear-password-in-Procurve-2650/td-p/4598369#.U0sRNfldUok

To reset using the CLI, run the command "erase startup-config". When prompted, say yes to reboot and that will restore the procurve switch back to factory settings after it starts up.

Hub works on single Broadcast and single collision domain which means the the effective bandwidth will be shared if more than one PC is connected.

In your case I will suggest to go for a new 10/100Mbps switch instead of Hub

What do you need it configured to support? Multiple subnets? VoIP support?
Here's an example to support 2 subnets, VLAN 1 Data and VLAN 2 Voice. This switch is the VLAN router for the site and it is also the default gateway for all the devices on the network.

show running-config

Running configuration:

; J4899A Configuration Editor; Created on release #H.10.50

hostname "HP 2650 dot 11 layer 3"
snmp-server contact "Your contact info here"
snmp-server location "Server Rack - Upper Switch"
time timezone -5
time daylight-time-rule Continental-US-and-Canada
interface 49
name "Uplink to HP2650 port 49 - 192.168.105.12"
flow-control
exit
interface 50
name "Uplink to HP2650 port 49 - 192.168.105.13"
flow-control
exit
ip routing
timesync sntp
snmp-server community "public" Unrestricted
vlan 1
name "Data"
untagged 1-46
ip address 192.168.105.11 255.255.255.0
ip helper-address 10.50.3.2
tagged 49-50
no untagged 47-48
exit
vlan 2
name "Voice"
untagged 47-48
ip address 10.50.3.11 255.255.255.0
ip helper-address 10.50.3.2
tagged 1-46,49-50
exit
ip route 0.0.0.0 0.0.0.0 192.168.105.1
spanning-tree Always turn on Spanning Tree
spanning-tree priority 0 This switch is the master Spanning Tree operator.
password manager
password operator

hostname "Switch1"
qos dscp-map 101110 priority 6
snmp-server community "public" Unrestricted
vlan 1
name "Data_Vlan"
untagged 1-28
ip address 192.9.180.19 255.255.255.0
exit
vlan 2
name "Voice_Vlan"
ip address 10.9.180.5 255.255.255.0
qos dscp 101110
tagged 1-28
voice
exit
Program the port that the PBX is in as a untagged port on Vlan 2

You'll need to obtain a comms lead - connects into the console port of the switch then into an RS232 port on your laptop. Then, you will be able to connect using hyper terminal and you can give the switch an IP address, username, etc. Even a hard-reset won't allow you to configure an IP address as by default it needs to be configured through the lead. Will they not talk without being configured? If you just hard reset them, they should just behave as unmanaged switches.